54 lines
1.7 KiB
C++
54 lines
1.7 KiB
C++
#ifndef MESSAGE_HELPER_H_INCLUDED
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#define MESSAGE_HELPER_H_INCLUDED
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#include <cinttypes>
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#include <QByteArray>
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#include <QByteArrayList>
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#include <QString>
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class MessageHelper {
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public:
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enum PacketType : std::uint8_t {
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POS_ECR = 0,
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// POS_EXT = 1,
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MESSAGE_RECEIVED_POSITIVE_ACK = 0x0A,
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MESSAGE_RECEIVED_NEGATIVE_ACK = 0x0F
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// POS_HOST_FORMAT_1_ENCRYPTED = 0x11,
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// POS_HOST_FORMAT_1_UNENCRYPTED = 0x21
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};
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explicit MessageHelper(QString const &posID = "T-TPS-SELF2002in",
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QString const &apak = "8AC304380E0E476BA2558B75DB9E2516");
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explicit MessageHelper(QByteArray const &posID, QString const &apak);
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~MessageHelper();
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void createRawPacket(PacketType PacketType,
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QByteArray const &encryptedPacketId,
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QByteArray const &message);
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bool insertEncryptedPacketID(QByteArray const &encryptedPacketID);
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QByteArrayList const &getMessageChunksToSend();
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QByteArrayList const &createLoginMessageChunksToSend(char ext);
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// private:
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QByteArray m_posID;
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QByteArray m_apak;
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uint8_t m_posIDLength;
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QByteArray m_messageHeaderPrefix;
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QByteArray m_rawPacket; // without leading STX and trailing [ETX(1/2), LRC]
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QByteArray m_loginMessage;
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QByteArrayList m_messageChunkList;
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bool setMessageHeaderPacketType(PacketType packetType);
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bool createMessageHeaderPrefix(PacketType packetType, QByteArray const &encryptedPacketID);
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void createLoginMessage();
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static QByteArray const &mask(QByteArray &messageChunk);
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static QByteArray const &unMask(QByteArray &messageChunk);
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};
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#endif // MESSAGE_HELPER_H_INCLUDED
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